Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

ARF and Cor Pulm.

Acute Respiratory Failure not a disease but a condition; inadequate gas exchange, lung can not make the O2 demand of tissues
Signs of ARF specific or nonspecific; sudden or gradual onset; either decrease in PaO2 or rapid increase in PaCO2
PaO2 partial pressure oxygen or oxygen pressure in arterial blood; free oxygen that has not yet bound to hemoglobin (80-100mmhg)
SaO2 oxygen saturation in arterial blood. Once oxygen is bound to hemoglobin, it no longer exerts pressure (greater or equal to 90%)
PaCO2 partial pressure CO2, the amount of carbon dioxide present in the arteries (35-45mmhg)
Hypoxemia vs Hypercapnia Hypoxemia is not enough O2 in the blood, anything less than 60mmhg. Hypercapnia is not enough CO2 taken out of the blood, so anything greater than 45mmhg.
Symptoms of Respiratory Failure Early signs are tachycardia or HTN. Late signs are severe morning headache or cyanosis.
Consequences of hypoxemia/hypoxia Metabolic acidosis, cell death, decreased cardiac output, and impaired renal function
Clinical Manifestations of Resp Failure rapid shallow breathing; tripod position; dyspnea; pursed-lip breathing; retractions; change in I/E ratio
Ventilation-Perfusion Mismatch volume of blood perfusing the lungs each minute (4-5L); this fails to match the fresh gas that reaches the alveoli, so glood and gas don't match...causes: COPD, pneumonia, asthma, atelectasis, PE
Shunt blood exits the heart w/o having participated in gas exchange; there are 2 types: Anatomic shunt (ventricular/septal defect) and Intrapulmonary shunt (b/c of fluid filled alveoli; ARDS, pneumonia, and PE)
diffusion Limitation gas exchange is compromised b/c a process has thickened or detroyed the membrane; severe emphysema, pulmonary fibrosis, recurrent PE, hypoxemia present during exercise
Alveolar Hypoventilation decrease in ventilation that results in an increase in PaCO2 and decrease in PaO2, its a mechanical in PaO2; restrictive lung disease, CNS disease, chest wall dysfunction, and neuromuscular disease
Cor Pulmonale enlargement of the R ventricle (right-sided heart failure); secondary to disease of the lung, thorax, or pulmonary circulation; causes: pulmonary HTN, cardiac failure, and COPD (most common)
Clinical Manifestations of Cor Pulmonale dyspnea; chronic productive cough; wheezing; retro/substernal pain; fatigue
clinical Manifestations of heart failure peripheral edema 3+, weight gain, JVD, full & bounding pulse, enlarged liver
Created by: sydleigh